@misc{indiciae584357c170ff,
  title = {Circadian CEA variability: when to sample.},
  author = {C Focan and D Focan-Henrard and M H Frere and S L Hung and V Castronovo and J Collette and P Franchimont and Y Touitou and F Levi and R Roemeling},
  year = {1986},
  doi = {10.1200/jco.1986.4.4.607},
  url = {https://pubmed.ncbi.nlm.nih.gov/3958771/},
  note = {Source identifier: 3958771}
}